MEDIUM
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IMPORTANT
Earn 100
What is the effective mass of a photon having wavelength ?
Important Questions on Dual Nature of Matter and Radiation
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The energy of photon of visible light with maximum wavelength in eV is :
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What is the momentum of a photon having frequency 1.5 x 1013 Hz
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The strength of photoelectric current is directly proportional to :
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When light is incident on a surface, photo electrons are emitted. For photoelectrons :
MEDIUM
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When light falls on a photosensitive surface, electrons are emitted from the surface. The kinetic energy of these electrons does not depend on the:
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The work- function of a photosensitive substance is 4.0 eV. The longest wavelength of light that can cause photoelectron emission from this substance is approximately:
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Photoelectric effect takes place in element A. Its work function is 2.5 eV and threshold wavelength is . An other element B is having work function of 5 eV. Then find out the maximum wavelength that can produce photoelectric effect in B :
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When light of wavelength lesser than 6000 is incident on a metal, electrons are emitted. The approximate work-function of the metal is :
